Summary
A denial of service vulnerability exists in the Windows Domain Name System (DNS) DNSAPI.dll when it fails to properly handle DNS responses.
To learn more about the vulnerability, go to CVE-2018-8304.
More Information
Important
-
If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.
How to obtain and install the update
Method 1: Windows Update
This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to turn on automatic updating, see Windows Update: FAQ.
Method 2: Microsoft Update Catalog
To get the stand-alone package for this update, go to the Microsoft Update Catalog website.
Deployment information
For deployment details for this security update, go to the following article in the Microsoft Knowledge Base:
More Information
File information
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.
Windows Server 2008 file information
Note:Â The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.
How to obtain help and support for this security update
Help for installing updates: Windows Update: FAQ
Security solutions for IT professionals: TechNet Security Support and Troubleshooting
Help for protecting your Windows-based computer from viruses and malware: Microsoft Secure
Local support according to your country: International Support
File Information
File hash information
|
File name |
SHA1 hash |
SHA256 hash |
|---|---|---|
|
Windows6.0-KB4291391-x86.msu |
8FDB022F0374EF0DAC67150280BEAFF67822957E |
A3A3F02DA52ABA0A45C422FFB62F86B6C2A5CBEE6E031AE6202D0C71B66B5879 |
|
Windows6.0-KB4291391-ia64.msu |
D07C6ACF8066EF39D941FDBBA1016180EEE52A1B |
F5D0330A8988ED3D8944A724E859269B2D8A7DB3C2CD24237E9B5EC661A0DCD1 |
|
Windows6.0-KB4291391-x64.msu |
8FD1761643678688C069D6673A4029111BA4462D |
3C2DCF27BF6A2C858EE5C0436E4692E5536AE32AEDB99D0713E0E9483ADE036A |
|
WindowsXP-KB4291391-x86-Embedded-ENU.exe |
A48BC4BA244B5A49D0191900C5F65F60E1568579 |
E65B9E76A80B48C8E6B60ED8CCBCEC9C2F1F73A3C0774B898D8BED1921EA28CE |
For all supported x86-based versions
|
File name |
File version |
File size |
Date |
Time |
Platform |
|
Dnsapi.dll |
6.0.6002.24412 |
168,448 |
08-Jun-2018 |
15:44 |
x86 |
|
Dnscacheugc.exe |
6.0.6002.24412 |
25,088 |
08-Jun-2018 |
14:01 |
x86 |
|
Dnsrslvr.dll |
6.0.6002.24412 |
86,528 |
08-Jun-2018 |
15:44 |
x86 |
For all supported ia64-based versions
|
File name |
File version |
File size |
Date |
Time |
Platform |
|
Dnsapi.dll |
6.0.6002.24412 |
430,080 |
08-Jun-2018 |
15:35 |
IA-64 |
|
Dnscacheugc.exe |
6.0.6002.24412 |
60,416 |
08-Jun-2018 |
14:09 |
IA-64 |
|
Dnsrslvr.dll |
6.0.6002.24412 |
222,208 |
08-Jun-2018 |
15:35 |
IA-64 |
|
Dnsapi.dll |
6.0.6002.24412 |
168,448 |
08-Jun-2018 |
15:44 |
x86 |
|
Dnscacheugc.exe |
6.0.6002.24412 |
25,088 |
08-Jun-2018 |
14:01 |
x86 |
For all supported x64-based versions
|
File name |
File version |
File size |
Date |
Time |
Platform |
|
Dnsapi.dll |
6.0.6002.24412 |
221,696 |
08-Jun-2018 |
15:43 |
x64 |
|
Dnscacheugc.exe |
6.0.6002.24412 |
28,672 |
08-Jun-2018 |
14:11 |
x64 |
|
Dnsrslvr.dll |
6.0.6002.24412 |
117,760 |
08-Jun-2018 |
15:43 |
x64 |
|
Dnsapi.dll |
6.0.6002.24412 |
168,448 |
08-Jun-2018 |
15:44 |
x86 |
|
Dnscacheugc.exe |
6.0.6002.24412 |
25,088 |
08-Jun-2018 |
14:01 |
x86 |
Windows Embedded POSReady 2009, and Windows Embedded Standard 2009 file information
For all supported x86-based versions
|
File name |
File version |
File size |
Date |
Time |
Platform |
SP requirement |
Service branch |
|
Afd.sys |
5.1.2600.7510 |
138,496 |
09-Jun-2018 |
23:02 |
x86 |
SP3 |
SP3QFE |
|
Dnsapi.dll |
5.1.2600.7510 |
150,016 |
11-Jun-2018 |
23:30 |
x86 |
SP3 |
SP3QFE |
|
Dnsrslvr.dll |
5.1.2600.7510 |
45,568 |
11-Jun-2018 |
23:30 |
x86 |
SP3 |
SP3QFE |
|
Mswsock.dll |
5.1.2600.7510 |
245,248 |
11-Jun-2018 |
23:30 |
x86 |
SP3 |
SP3QFE |
|
System.adm |
Not applicable |
1,752,132 |
31-Jan-2018 |
18:36 |
Not applicable |
SP3 |
SP3QFE |
|
Tcpip.sys |
5.1.2600.7510 |
361,600 |
09-Jun-2018 |
23:02 |
x86 |
SP3 |
SP3QFE |
|
Tcpip6.sys |
5.1.2600.7510 |
226,880 |
09-Jun-2018 |
22:42 |
x86 |
SP3 |
SP3QFE |
|
Updspapi.dll |
6.3.13.0 |
382,840 |
01-Feb-2018 |
21:28 |
x86 |
None |
Not applicable |
